Animals, birds, and even flowers of blue hues color their landscapes, from the Arctic to the jungle, as they enjoy a moment of peace in the hour between day and night.

Several different animals settle in for the night, each with their own unique way of sleeping.

"Did you know that gingko trees have been around since before the dinosaurs? Or that trees can communicate with each other through fungi in the ground? The Book of Amazing Trees is a comprehensive guide for young readers, covering the basics of tree anatomy, photosynthesis, the role of flowers, and more, while sharing amazing facts from the most up-to-date research about trees. Young nature-lovers can put their knowledge to the test with interactive...